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Ocular Emergencies & Red Ocular Emergencies & Red Eye 2017-2018 Objectives: Done By: ​Ibtihal Almshawi Resources: Team 433, Doctors Notes ​Editing File Ocular Emergencies General Emergencies: Orbital/Ocular Trauma: Microbial keratitis->Corneal ulcer Corneal abrasion Uveitis Corneal & conjunctival foreign bodies ​Acute angle glaucoma Hyphema Orbital cellulitis Ruptured globe Endophthalmitis Orbital wall fracture Retinal detachment Lid Laceration Chemical injury 1 Hyphema: Hyphema is defined as the presence of blood within the aqueous fluid of the anterior chamber. The most common cause of hyphema is “trauma”. -doctors call it “8 Ball hyphema “ when it is filled with blood . “Eight-Ball” Hyphema. This hyphema completely fills the anterior chamber - Can occur with blunt or penetrating injury - Blood in the ​“anterior chamber” - Can lead to high intraocular pressure - we need Detailed history (Sickle cell) to help in the treatment ​*​Moderate increase of IOP in sickle cell hemoglobinopathy patients may produced rapid deterioration of visual function, because sickling can lead to obstruction of the central retinal artery and profound irreversible visual loss. Management: 1-Bed rest ​to prevent re-bleeding. * “nomovement “ to prevent the rebleeding 2- Topical steroid ​to reduce inflammation 3- Topical cycloplegic ​to cause pupil dilatation then prevent accommodation to prevent dislodging of the clot which cause re-bleeding. 4- Antifibrinolysis agents (Tranexamic acid) 5- Surgical evacuation if increase IOP, stays more than five days and not responding to treatment. If total wait for 3 days if not responding and pressure more than 30mmHg do Surgical evacuation, Not total wait for 5 days if pressure less than 30 mmHg. 6- Sickle cell anemia patients need immediate intervention. 2 Corneal Abrasion : Corneal abrasions​ result from a disruption or loss of cells in the top layer of the ​cornea​, called the ​corneal ​Epithelium. caused by fingernails or lenses . Symptoms: -Foreign body sensation -Pain ​“severe pain” -redness -Tearing -Photophobia ​*​experience of discomfort or pain to the eyes due to light exposure “Corneal Abrasion can lead to Corneal Ulcer if untreated “ Treatment: - Topical antibiotic - Cycloplegia to dilate pupil to decrease pain -​Pressure patch over the eye - Refer to ophthalmologist - Important to treat to avoid infections - If infection is suspected do scraping biopsy to rule it out​. 3 Chemical injuries: - A vision-threatening emergency - The offending chemical may be in the form of a solid, liquid, powder, mist, or vapor. - Can occur in the home, most commonly from detergents, disinfectants, solvents, cosmetics, drain cleaners..... - ​Alkaline chemical injury​ is worse because it will cause penetration. - Can range in severity from mild irritation to complete destruction of the ocular surface - It may be aggressive and destroy eye surface “Epithelium” causing stem cell deficiency end up with blindness. - Destruction of optic nerve common in case of glaucoma resulting from alkaline injury. Management: - ​Irrigate ​with clean water - Instill topical anesthetic - Check for and remove foreign bodies - ​Immediate irrigation ​essential, preferably with saline or Ringer’s lactate solution, for at least 30 minutes.​*immediately before take history even - Irrigation should be continued until neutral pH is reached (i.e.,7.0) - Instill topical antibiotic - Frequent lubrications - Oral pain medication - Enhance healing 4 Uveitis - Inflammation of the uveal tissue ​(iris, ciliary body, or choroid)​, retina, blood vessels, optic disc, and vitreous can be involved. “the patient may has retinitis or hypopyon secondary to uveitis “ It could be: 1- anterior as iridoscleritis. 2- at the back as choroiditis, retinitis. 3- Panuveitis. Etiology: 1- Idiopathic 50% 2- Inflammatory diseases: HLA B27, Ankylosing spondylitis, IBD, Reiter’s syndrome, Psoriatic arthritis. Sarcoidosis, Behcet’s, Vogt-Koyanagi-Harada Syndrome. 3- Infectious: ➔ Herpes virus. ➔ Toxoplasmosis; transmitted through cats. ➔ Secondary Tuberculosis; granulomatous uveitis (common in KSA, India) – give anti Tb and steroids. ➔ Sarcoidosis; granulomatous uveitis (USA). ➔ Syphilis. Management: 1. Identify possible cause. 2. Topical steroid​“first”. 3. Topical cycloplegics​."paralysis of the ciliary muscle of the eye, resulting in a loss of accommodation." 4. Systemic immunosuppressive medication​“according to workup,either shift to systemic or continue topical” ➔ Steroid. ➔ Cyclosporine. ➔ Methotrexate. ➔ Azathioprine. ➔ Cyclophosphamide. 5. Immunomodulating​ ​agents. ➔ Infliximab (Anti TNF). 5 Acute Angle Closure Glaucoma: ● Result from peripheral iris blocking the outflow of fluid ​ How the patients will present?*symptoms ● Present with pain, redness, mid-dilated pupil , decreased vision and colored haloes around lights ● Severe headache or nausea and vomiting ● increased Intraocular pressure ● Can cause severe visual loss due to optic nerve damage Typical history: while dimming the light. *Glaucoma increases at night more than morning because of pupil dilation at night. in One of the cases a patient came to the doctor complaining that he had eye pain whenever he watching a film and turn off the lights Management : ● Medical treatment ​to reduce the pressure and relieve the pain. ● peripheral laser iridotomy will be curative in most cases. 6 Preseptal cellulitis: ​*also known as Periorbital cellulitis is an inflammation and infection of the eyelid and portions of skin around the eye, anterior to the orbital septum. ● patient presents with Lid swelling and erythema. ● Visual acuity,​ ​motility​, ​pupils​, and ​globe​ should be normal. To rule out orbital cellulitis . Etiology: Management : 7 Orbital cellulitis: *Orbital cellulitis is inflammation of eye tissues behind the orbital septum. It most commonly refers to an acute spread of infection into the eye socket from either the adjacent sinuses or through the blood. ● More serious than preseptal cellulitis because it may go to the brain and lead to death. ● May be a consequence of preseptal cellulitis. Symptoms: ● Pain, Decreased vision. ● Impaired ocular motility/double vision ● Afferent pupillary defect ● Conjunctival chemosis and injection *Chemosis of the conjunctiva is a type of eye inflammation. It occurs when the inner lining of the eyelids swells. ● Proptosis​ *is a bulging of the eye anteriorly out of the orbit. ● Optic nerve swelling on fundus exam ‘Motility, pupil reaction, fundal exam, color vision need to be tested to check optic nerve function. “ Management: 1. Admission. 2. Intravenous antibiotics 3. Nasopharynx and blood cultures 4. Surgery may be necessary as in case of subperiosteal abscess.so, they will drain the puss . 8 Endophthalmitis: (extreme ophthalmic emergency) *Endophthalmitis​ is an inflammation of the interior of the eye ● Potentially devastating complication of any intraocular surgery ● Secondary to trauma or post-surgery ​(channel from outside to inside which cause bacterial entry and it found good environment to live in as there is no direct blood vessels in the vitreous to provide strong immunity) - Sometimes the destruction is due to the inflammation not the infection itself ● Any patient in the early postoperative period (within 6 weeks of surgery) should be evaluated for pain or decreased vision immediately. ● patient Present with Severe redness, lid edema and hypopyon , on exam you find vitritis. Management : ● Vitreous sample for culture. ● Intravitreal antibiotics injection plus topical antibiotics. ● Broad spectrum antibiotics or ​Ceftazidime​ and ​Vancomycin ● In severe infection the vitreous will be like an abscess in this case surgery is needed to drain it (Vitrectomy). ● If visualization of vitreous is not possible in case of severe infection, do B scan ● In decreased visual acuity (hand motion or less) Surgery is needed, if better give Intravitreal antibiotics only. *Visual acuity will decide the treatment if Intravitreal antibiotics or surgery ● do surgery – if​ no response to antibiotics​ and​ Endophthalmitis secondary to ​blebitis​. *blebitis. is ​a presumed infection in or around a filtering bleb without vitreous involvement. 9 Retinal Detachment: *Retinal detachment​ is a disorder of the eye in which the ​retina​ separates from the layer underneath. Symptoms: -Flashes, floaters, a curtain or shadow moving over the field of vision. -Peripheral and/ or central visual loss. History of scratching the eye -painless Management: ​Surgery the aim of the treatment is to close the causative break in the retina and to increase strength of the attachment between the surrounding retina and the RPE​ ‘Retinal pigment epithelium’​ by inducing inflammation in that region. Ruptured Globe: Suspect a ruptured globe if: ● Severe blunt trauma:​ rapture at weak part of the eye which is insertion of the muscles and lamina cribrosa. ● Sharp object. ● Bullous subconjunctival hemorrhage ● Uveal prolapse (Iris or ciliary body) ● Irregular pupil ● Hyphema ● Vitreous hemorrhage ● Lens opacity ● Lowered intraocular pressure IF suspect a ruptured globe: 1. Stop examination 2. Shield the eye 3. Give tetanus prophylaxis 4. Refer immediately to ophthalmologist 10 Orbital fracture: *An orbital fracture is a traumatic injury to the bone of the eye socket. These injuries are usually the result of blunt force trauma to the eye. ● Assess ocular motility ● Assess sensation over cheek and lip - Palpate for bony abnormality ● Enophthalmos; eye sinking inside When evaluating orbital fractures, focus on the following exam findings:
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